Learning Docker Compose by Building a Simple Todo App

Source: Dev.to

Overview

• Currently exploring Docker Compose by running a simple multi‑container Todo application.
• Project components
  • Node.js backend
  • MongoDB for the database
  • Nginx as the web server
• Used Docker Compose commands to:
  • Start all services together
  • Check their status
  • Confirm each container is running and correctly mapped to its ports
• Learned how Docker handles logs and service orchestration.
• Encountered a warning about the Compose file version, which clarified recent changes in Docker Compose behavior.